Hi, did it all use to work, or is this a new installation. If it used to work - try a System Restore back to a time when it did.
If it is a new installation, uninstall completely, do a disk cleanup (in System Tools) then do a defrag. Then restart pc with Hardware attached, XP should then find and install, have hardware instal disk ready if XP asks for it.
Cheers, hope this helps.